Lubricator for table-bearings of milling-machines.



J. GOETZ, W. K, BUXBAUM & P. A PARSONS. LUBRIOATOR FOR TABLE BEARINGS or MILLING MACHINES.

APPLICATION FILED JULY 14, 1913.

m m H m m \N L Q 1 m L 2 \m1 N w 1 L /u0( Muur i 7' TVF/VEI J. GQETZ, W. K. BL XBAUM, 6s F. A. PARSONS.

LUBRNAT R FOR TABLE Eb RIlINP- L? MILLIM MACHINES.

I-PYLICAIIOT- YUELB JULY .4 1013 1,097,221. Patented May 19, 1914 2 SHEETSSHEET 2.

(lI II/II/IIIIIIIII UNITED STATES PATENT OFFICE.

JOHN GOETZ, OF WEST ALLIS. AND WILLIAM K. BUXBAUM AND FRED A. PARSONS, OF

MILWAUKEE, WISCONSIN, ASSIGNDRS TO THE KEMPSMITH MANUFACTURING- CCL,

OF MILWAUKEE, WISCONSIN, A CORPOB-ATION OF WISCONSIN.

LUBRIGATOR FOR TABLE-BEARINGS 0F MILLING-MACHINES.

Specification of Letters Patent.

Application filed July 14,1913.

Patented May 19, 1914.

Serial No. 778,891.

To all whom it may come/'2':

Be it known that we, JOHN Gou'iz. n.- LIAM K. BUXBAIM, and Pain) A. Pansons, citizens of the United States, and residents respectively, of \Yest Allis. in the county oi Milwaukee and State of Wisconsin. and of Milwaukee. in the county of Milwaukee and State of Wisconsin, have invented new and useful Improvements in Luln'icators for Table-Bearings of Mihing-Machines, oi

which the following is a description, reference being had to the accompanying drawings. which are a part of this specification.

This invention has for its object to provide a force feed lubricating system for the bearings ot' the traveling table of a milling machine without an undue waste of lubri cant.

\Vith the above and other objects in view the invention consists in the lubricating system as herein claimed and all equivalents.

Referring to the accompanyii'ig drawings in which like characters of reference indicate the same parts in ditl erent views: Figure 1 is a longitudinal sectional view tl'irough the knee of a milling machine and the parts associated therewith showing portions of the lubricating system of this invention; Fig. 2 is a sectional view on a plane at right angles to the sectional view of Fig. 1: Fig. 3 a transverse sectional view of the end table on the plane of line 1) of l ig. 2; and, Fig. l; is a horizontal detail sectional view through one of the sliding coi'mections of the knee with the column or casing showing the lubricant communication between the stationary and the movable parts.

In these drawings 10 indicates a casing or upright column of a milling machine pro vided with beveled flanges 11 around which fit the correspending beveled flanges l2 of a vertically adjustable knee 13, the ms or adjusting the knee vertically not being shown as it may be of any ordinary construction. The knee has beveled flanges 14: at its upper edges forming guides for a horizontal sliding saddle 15 adjustable thereon toward or' away from the column as usual, and the saddle in turn has undercut flanges ltl forming a guidewav for the dovetailed guide flanges 17 on the bottom of the table 18 which is thus horizontally movable on the saddle at right angles to the direction of movement of the saddle on the knee.

The

means for adjusting the saddle on the knee is not illustrated as anv usual adjusting means may be cmplovcd tor this purpose. The means for adjusting the table on the saddle, howewr. is shown as: con tituting the Ordinary feed st-reu Il jourualcd in hearings 20 and 2t at the (lids of the table and passing through a lined nut member 2' in the saddle so that a turning ol' the feed screw either by means of the crank handle 23 onthc front end thereof. or by the usual gear mechanism, not shown. ('nuses the longitudinal traveling movementof the table 18 on the saddle 15.

It is the object of the present. invention to provide a force feed lubricant supply to the bearings of the feed screw and the. guide bearings oi the table in any adjustment of the parts and at all times during the travelll'lg lnt'il'tfllltlll'S thereof. A lubricant supply pipe 2- leading from any suitable source of lubricant supply under pressure connects with one of the beveled flanges 11 of the column or easing of the milling machine Where it will have communicatitm with a vertical groove 25 on the meeting face of the knee which fits tightly against the flat face of the flange 11. said groove being of suilicient length to remain in con'ununication with the lubricant feed pipe 24 in any vertical adjustment ot' the knee. A. lubricant pipe 26 extends from the groove 25 to a groove .27 in the top lnzarin; surface of the knee and a. groove 28 in the bottom of the saddle and extending tran versely of the saddle register with the grm'ivc 2'? to maintain communica tion with the lubricant pipe Q i in any ad justment of the saddle on the knee. Ap proximately vertical passageways 29 at earn side of the saddle 15 lead irom the groove '4.

to longitudinal grooves 30 in the top of t7 "a saddle extending nearly the full length 5 the saddle and covered by the table 18. t intervals the grooves 30 in the top of he saddle are crossed by short grooves 3i to distribute lubricant over the bearing suri' ce between the saddle and the table and nelincd passageway 32 lead from these cross grooves Ill to the oblique bearing surface hetwcen the flanges it) of the saddle and the flanges 1? or' the table. in this manner the lubricant is :upplied to the bearing surfaces between the table and the saddle. At no time are the lubricant passageways unovered by the movements of the saddle or t tble and consequently there is not a loss of pres,

sure within them, and an inclin'ed passagcway 33 through the table communicatin with one of the grooves 80 conveys a part 0 the lubricant to another inclined passageway 34 plugged at its upper end and communi' eating at its lower end with a passageway extending the full length of the table and preferably formed by a pipe cast within the table. At its opposite ends this passageway is connected by inclined passageways 36 with the bearings 90 and 521 of the feed screw 19 so that these hearings will be supplied with lubricant at all times notwithstanding the movements of the various parts.

By means of this invention the bearings of the table on the saddle and the bearings of the feed screw are supplied with lubricant under pressure at all times during the various adjustments and the traveling movements of the parts, and the passageways of the lubricating system formed by the grooves between the parts are prevented from having a material loss or escape of lubricant by reason of the tight fit of the bearing surfaces in which they are formed. By making the inclined passageway 33 connect with another inclined passageway 34 at a point higher than the passageway 35 it is prevented from draining the passageway 35 when the parts are disconnected.

What we claim as new and desire to secure by Letters Patent is:

1. In a milling machine having a knee and an adjustable saddle thereon and a movable table on the saddle, a lubricating system for the bearings of the table on the saddle com prising passageways through the knee and the saddle connected with the bearing surfaces therebetween, there beinga groove in one of such bearing surfaces for maintaining communication between the passageways of the knee andthc saddle in the different adjustments of the parts, the passageway of the saddle leading to the bearing surfaces of the table.

2. In a milling machine having a column, and an adjustable knee thereon, and ar adjustable saddle on. the knee, and a movable ta le on the saddle, a lubricating system for the bearings of the table on the saddle comprising passageways through the column and the knee and the saddle connected with the bearing surfaces therebetween, there being grooves in the bearing surfaces for maintaining communication between the passageways in the diffcrent adjustments of the parts, the passageway of the saddle lead ing to the bearing surfaces of the table.

3. In a milling machine having a column, and a vertically adjustable knee slidably mounted on the column and a horizontally adjustable saddle slidably mounted on the knee to have a movement longit dinally of the knee, and a table horizontal y slidab'le on the saridle to have a movement transversely ofthe knee, a lubricating system for the bearing surface of the table comprising lubricant supply pipe connecting with the bearing surface of the column, there being a vertical groove in the bearing surface of the knee communicating with the lubricant supply pipe in the different positions of the knee, a lubricant pipe communicatin with the groove and with the bearing suriace on the knee for the saddle, there being a transverse groove in the bearing surface of the saddle registering with the lubricant pipe in the different positions of the saddle, and

. passageways through the saddle at each side thereof communicating with the groove in the bottom of the saddle and connecting with thg1 bearing surface on the saddle for the ta c.

4. In a millin machine having a coiumn, and an adjustab e knee thereon, and an adjustable saddle on the knee and a movable table on the saddle, and a feed screw journaled in hearings on the table for moving the table on the saddle, a lubricating system for the bearings of the table on the saddle and for the bearings of the feed screw, comprising passageways through the column and the knee and the saddle connected with the bearing surfaces therebetween, there being grooves in the bearing surfaces for maintaining communication between the passageways in the different adjustments of the parts, the passageway of the saddle lead ing to the bearing surfaces of the table, and a passageway extending longitudinally through the table and communicating with the bearings of the feed screw and having a passageway leading to it from the bearing surface between the table and the saddle,

5. In a millin machine having a column and an adjustab e knee thereon and an adjustable saddle on the knee and a movable table on the saddle and a feed screw journaled in hearings on the table for moving i the table on the saddle, a lubricating system for the bearings of the feed screw compris ing passageways through the column and the knee and the saddle connected with the bearing surfaces therebetween, there being grooves in the bearing surfaces formain taining communication between the passagfways in the difl'erent adjustments of t a parts, and a passageway extending longitudinally through the table communicating with the bearings of the feed screw.

6. In a milling machine having a knee and an adjustable saddle thereon and a movable table on the saddle and a feed screw journaled in hearings on the table for moving the table on the saddle, a lubricating system for the bearings of the feed screw, comprising passageways through the knee and the saddle connected with the bearing surfaces therebetween, there being grooves in, 011'. of such hearing surfaces for main- .uining coinmnnivatio'n between the pasmay: of the knee and the saddle in the tha-ment ztt'ljtlFlllttlttS of the parts a pas- --n;;ei\'ay extending longitudinally throu h the table and having connection with tie lTzat'ltlgS of the feed screw, and a passagefi'ulillllttliltfnllhg therewith and leading from the hearing surface between the table and the saddle and conm'mnicating with the passageway of the saddle.

1 In a milling machine having a knee and an atlinstatile saddle thereon and a movable Table w!) the saddle and a feed screw journaletl in hearings on the table for moving the table on. the saddle, a lubricating system for the hearings of the feed screw, compri ing passageways through the knee and the saddle connected with the hearing surfaces therehetween, there being grooves in one of such bearing surfaces for maintaining l (0mmunicrttion between the passa aways of the knee and the saddle in the di erent adjustnmnts of the parts, a passageway extending longitudinally through the table and having connection with the bearings of the feed screw, and a passageway communicating therewith and leading from the bearing surface between the table and the saddle, the last mentioned passageway having an intermediate part higher than the longitutlinal passageway through the table.

In testimony whereof, we affix our signatures, in presence of two Witnesses.

JOHN GOETZ.

\VILLIAM K. BUXBAUM.

FRED A. PARSONS.

Witnesses E. LEASON, J12, PETER Lows. 

